The probability that student scored more than 850 we shall proceed as follows:
z=(x-μ)/σ
where:
x=850
μ=750
σ=50
thus
z=(850-750)/50
z=2
thus
P(x>850)=1-P(x<850)=1-P(z<2)=1-0.9772=0.0228
Answer: P(x>850)=0.0228
Formula is y = mx + b
Answer y = - 2/3x - 3
Answer:
The last one
Step-by-step explanation:
The standard method for solving an equation like 3x + 5 = 26 is to use
the Subtraction Property of Equality and then the Division Property of
Equality.
3x + 5 = 26
you would have to subtract first to get your answer
so subtract 5 on both sides
3x= 21
then u would have to divide 3 by both sides to get the x alone/ isolated
x= 7
and that is why u should use " Subtraction Property of Equality and then the Division Property of Equality, " as your method.
Answer:
C. (4,28)
Step-by-step explanation:
The substitution method requires you to input a specified number in place of a variable. In this case, the variable 'x' should be replaced by the number 4. Using the order of operations, we know that multiplication should be applied before subtraction. When we replace 'x' with 4, we get the equation 'y=8(4)-4'. Multiplying 8 and 4 gives us 32. If we subtract 4 from 32, we get 28. The answer ends up being 'y=28'.
That is the first part of our solution. What we are actually looking for is an ordered pair. We know ordered pairs are written in the form (x, y). First, we need to find the 'x'. The 'x' has been given to us from the beginning, it is 4. Next is the 'y'. This is what we needed to find using substitution. We ultimately concluded that the 'y' is equivalent to 28. Therefore our ordered pair is (4, 28), the letter choice C.
I hope this helped you and that I clearly elaborated on the answer choice.
Answer:
(3m-1)(m+5)
Step-by-step explanation:
